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Operating Schedules

The NIH Data Center operates on a seven-day, 24-hour basis, although the availability of individual services varies. The availability may also vary on holidays and/or weekends depending on the workload, required system maintenance, and equipment reconfiguration. Normal daily service and planned service hours appear below.

Helix Systems, Unix, Windows, and zLinux Servers

Every day 24 hours

z/OS Mainframe (Titan)

Batch Processing
Monday-Saturday 24 hours
Sunday 2:00 A.M. - midnight
Sunday-Friday 7:00 A.M. - 8:00 P.M.
Saturday 8:00 A.M. - 8:00 P.M.
Monday-Saturday 2:00 A.M. - midnight
Sunday 4:00 A.M. - midnight

Oracle Gateway *
Every day 24 hours
* Service is not available during the
  DB2 nightly maintenance window.

Oracle Net (SQL*Net)
Every day 24 hours
* Service is not available during the
  DB2 nightly maintenance window

Output Distribution Services
Monday-Friday 24 hours
Weekends 24 hours
TSO and Batch Services
Monday-Saturday 24 hours
Sunday 2:00 A.M. - midnight

The Titan system has unattended service on Thanksgiving, Christmas, and New Year's Day.

Outages outside the normal schedule are announced five business days in advance, if possible. Go to the NIH IT Service Desk home page to view the current Hot News messages, including maintenance announcements. Refer to the IT Maintenance Calendar for regularly scheduled maintenance and outages.

Special arrangements for service beyond the announced schedule may be possible if needed by contacting the head of the Data Center Operations Branch through the NIH IT Service Desk.

For additional information related to the operating schedule, including disruptions in CIT hosting services, refer to the Titan User's Guide.

NIH IT Service Desk

Monday-Friday (except holidays) 6:00 A.M. - 6:00 P.M. (Eastern Time)
Emergency after-hours support 6:00 P.M. to 12 A.M. (midnight)
Weekends and Holidays 8:30 A.M. - 5:00 P.M. (limited emergency support)

Other Offices

Monday-Friday 8:30 A.M. - 5:00 P.M.

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This page last reviewed: January 02, 2015